TDBTransaction class

Declaration

Inheritance

1. TDBTransaction
2. TComponent
3. TPersistent
4. TObject

Descends from it: TSQLTransaction

Description

TDBTransaction encapsulates a SQL transaction. It is an abstract class, and should be used by component creators that wish to encapsulate transactions in a class. The TDBTransaction class offers functionality to refer to a TDatabase instance, and to keep track of TDataset instances which are connected to the transaction.

See also

• TDatabase
• TDataset

Properties

DatasetCount	protected
Datasets	protected
DataBase	public	Database this transaction is connected to.
Active	published	Is the transaction active or not.

Methods

RegisterDataset	protected
UnRegisterDataset	protected
AllowClose	protected
CloseDataset	protected
SetDatabase	protected
CloseTrans	protected
OpenTrans	protected
CheckDatabase	protected
CheckActive	protected
CheckInactive	protected
Commit	protected
CommitRetaining	protected
Rollback	protected
RollbackRetaining	protected
EndTransaction	protected
StartTransaction	protected
InternalHandleException	protected
Loaded	protected	Called when the component has finished loading.
Create	public	Transaction property.
Destroy	public	Remove a TDBTransaction instance from memory.
CloseDataSets	public	Close all connected datasets.

Inherited

From TComponent (73)

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From TPersistent (5)

Assign AssignTo FPOAttachObserver FPODetachObserver FPONotifyObservers

From TObject (37)

AfterConstruction CheckDisposed ClassInfo ClassName ClassNameIs ClassParent ClassType CleanupInstance DefaultHandler DefaultHandlerStr Dispatch DispatchStr Disposed DisposeOf Equals FieldAddress Free FreeInstance GetDisposed GetHashCode GetInterface GetInterfaceByStr GetInterfaceEntry GetInterfaceEntryByStr GetInterfaceTable GetInterfaceWeak GetLastCastErrorInfo InheritsFrom InitInstance InstanceSize MethodAddress MethodName newinstance QualifiedClassName StringMessageTable SystemHasExtendedRTTI UnitName